delayed delivery of second twin, triplet, etc. (O63.2)
malpresentation of one fetus or more (O32.9)
placental transfusion syndromes (O43.0-)
7th character note
One of the following 7th characters is to be assigned to each code under category O31. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O31 that has a 7th character of 1 through 9.
7th character required
0 — not applicable or unspecified
1 — fetus 1
2 — fetus 2
3 — fetus 3
4 — fetus 4
5 — fetus 5
9 — other fetus
Applies from O31 Complications specific to multiple gestation
Excludes2 (not included here)
delayed delivery of second twin, triplet, etc. (O63.2)
malpresentation of one fetus or more (O32.9)
placental transfusion syndromes (O43.0-)
7th character note
One of the following 7th characters is to be assigned to each code under category O31. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O31 that has a 7th character of 1 through 9.